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    function sort (arr) {
      for (var i = 0; i < arr.length - 1; i++) {
        for (var j = 0; j < arr.length - i - 1; j++) {
          if (arr[j] > arr[j + 1]) {
            var temp = arr[j];
            arr[j] = arr[j + 1];
            arr[j + 1] = temp;
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      return arr;
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    var arr1 = sort([5, 9, 1, 3, 8]);
    console.log(arr1);
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